5 results about "Delayed Testing" patented technology

The invention discloses a cable transmission time delay test system, which comprises a pulse generation module, a tee joint or circulator, a signal amplification shaping module and a time difference measurement module, and is characterized in that the output end of the pulse generation module is connected with the first port of the tee joint or circulator, and the second port of the tee joint or circulator is electrically connected with a to-be-tested cable; the third port of the tee joint or the circulator is electrically connected with the input end of the signal amplifying and shaping module, and the output end of the signal amplifying and shaping module is electrically connected with the input end of the time difference measuring module. A test pulse signal is injected into the to-be-tested cable through the second port of the tee joint or the circulator, then an echo signal reflected by the tail end of the to-be-tested cable is collected, the time interval between the test pulse signal and the echo signal is measured, and finally the transmission time delay of the to-be-tested cable is calculated according to the time interval. Therefore, the test can be completed only by contacting one end of the cable, the installed equipment does not need to be disassembled, the on-site test process is simplified, and the efficiency is improved.

According to the TSN end-to-end time delay testing method based on the AS protocol, aiming at a time delay test of an airborne TSN, a TSN end-to-end time delay testing system is established, the TSN end-to-end time delay is calculated through a timestamp in an AS data frame, an ns-level end-to-end time delay result is provided, the accuracy and effectiveness of the TSN end-to-end time delay are ensured, and the TSN end-to-end time delay testing efficiency is improved. The problem of TSN network end-to-end delay test is effectively solved, the accuracy and effectiveness of test data are ensured, and a reference basis is provided for development and test of similar products.

This application relates to a power line detection method, apparatus, host computer device, and system. The method includes: sending a delay test command to each acquisition card device to obtain signal time data of the power line under test; sending a fault test command to each acquisition card device to obtain a test signal set of the power line under test; determining the delay test data of the power line under test based on the signal time data; determining the fault test data of the power line under test based on the test signal set; and sending the delay test data and fault test data of the power line under test to a cloud platform, instructing the cloud platform to locate the fault in the power line under test and determine the fault location. This method eliminates the need for segmented detection of the power line under test, thereby improving the fault detection efficiency.

The application discloses a link delay test method of a flexible direct-current valve control system and a related device, and the method comprises the following steps: determining a link delay type according to a starting point and an ending point of a signal passing through a link; determining a type of a test signal used for testing the link delay, a test starting point for sending the test signal, a link through which the test signal passes, and a test tool used for capturing the test signal after the test signal passes through the link according to the link delay type; recording a time point of a level change when the test tool captures the level change of the test signal; and calculating the link delay of the flexible direct-current valve control system according to the time point of the level change. The method realizes comprehensive and accurate testing of the link delay of the flexible direct-current valve control system, thereby solving the problem that there is no special test method for the link delay of the flexible direct-current valve control system in the prior art.

The application relates to a service performance test method, system, device and medium for 5G industrial application, which comprises the following steps: selecting a corresponding category of 5G industrial application according to obtained service demand, and determining service indexes for the category of 5G industrial application; selecting a network delay test direction or an application delay test direction according to the service indexes and the type of a terminal to be tested; and performing one-way and / or two-way delay test on the terminal to be tested through a pre-set test device and test case in the determined test direction. The application builds a simulated scene meeting the service demand of a customer and close to an actual operation scene according to the customer demand, achieves the purpose of targeted test, and reduces the measurement difficulty. Meanwhile, key index measurement such as delay, bandwidth and reliability is performed in the test, the service performance of the terminal to be tested including timeliness, data volume and system stability is fully considered, and the test efficiency and accuracy are improved.